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Malicious package

boxy-make-tokens-mapnpm

Advisory published Updated

boxy-make-tokens-map is a confirmed malicious npm package (MAL-2026-13056) that typosquats a legitimate package to trick installs (malicious version 35.9.7). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in boxy-make-tokens-map (npm)

MAL-2026-13056
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall boxy-make-tokens-map

What this malware does

index.js unconditionally requires./loader on module load. loader.js reconstructs three Cloudflare Worker hostnames (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev) via array-join string obfuscation, selects a platform-specific path, downloads an executable over HTTPS, writes it to /var/tmp/.cache<hex> on Unix or %TEMP%\dotnet_diag<hex>.exe on Windows (a decoy filename impersonating a Microsoft diagnostic tool), chmods it 0755, and spawns it detached and unref'd via /bin/sh or cmd. A DNS-TXT channel under *.dl.wel1.ru (hostnames such as sdk.dl.wel1.ru also reassembled via.join('')) reconstructs a base64-encoded payload from numbered subdomains as an out-of-band delivery/fallback channel. A marker file at /tmp/.analytics_state (or %TEMP%\analytics_state) with a TTL rate-limits re-execution. The stated purpose ('token map') does not match any of the observed behavior, and 'telemetry'/'analytics' comments provide cover-story framing.

Malicious versions

1 flagged
35.9.7

Indicators of compromise (SHA-256)

a3b24115f2a42bc7aa25741e66f56e8007a3d0816cab809e1da78740f9a7a2d5

Detection & response playbook

Typosquat

  1. Find it

    Search your lockfiles and build artifacts for boxy-make-tokens-map (version 35.9.7).

  2. If you installed it — respond

    boxy-make-tokens-map is a typosquat — you almost certainly intended a legitimately-named package. Remove boxy-make-tokens-map, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

  3. Did it already run?

    If boxy-make-tokens-map was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. boxy-make-tokens-map on npm has been identified as a malicious package (version 35.9.7 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-015321

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks boxy-make-tokens-map-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

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boxy-make-tokens-map (npm) malicious package — MAL-2026-13056 | O3 Security